统计岩石物理技术在E油田有效储层预测中的应用

An application of statistical petrophysics technique to predicting effective reservoirs in E oilfield

统计岩石物理技术是基于测井资料来评估不同储层参数的地震属性概率密度函数,可用于指导敏感地震属性的选择及储层参数空间概率分布的预测。针对尼日尔三角洲盆地E油田地震波阻抗无法区分砂岩和泥岩的问题,将统计岩石物理技术与地震反演技术相结合,提高了应用地震反演信息预测有效储层的精度,降低了储层预测风险。

The statistical petrophysics technique is to evaluate probability density functions of seismic attributes for various resorvoir parameters from logging data,which can be used to guide selection of sensitive seismic attributes and prediction of resorvoir-parameter probability distributions.In order to solve the problem that seismic acoustic impedance can not differentiate sandstone and mudstone in E oilfield in Niger Delta basin,the statistical petrophysics technique was combined with seismic inversion technique,improving the accuracy to predict effective reservoirs by seismic inversion data and reducing the risk of reservoir prediction.